结核菌素 jiéhéjūnsù tuberculin Origin Definitions Defs Strokes Stroke Words Sentences Sents 结核菌 結核菌 jiéhéjūn tubercle bacillus The bacterium that causes tuberculosis, such as the species 结核杆菌 jiéhégǎnjūn素 sù noun element (bound form) essential part; element; constituent; basic nature